diff --git a/platformio.ini b/platformio.ini
index a27d9ed..fb27d97 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -18,7 +18,7 @@ lib_ldf_mode = deep+
 monitor_speed = 115200
 monitor_raw = yes
 lib_deps = 
-	bblanchon/ArduinoJson @ 6.21.3
+	bblanchon/ArduinoJson @ 6.21.4
 	lewisxhe/AXP202X_Library @ 1.1.3
 	peterus/APRS-Decoder-Lib @ 0.0.6
 	peterus/esp-logger @ 1.0.0